820512426460 has 48 divisors (see below), whose sum is σ = 1739065648320. Its totient is φ = 325159971840.

The previous prime is 820512426451. The next prime is 820512426473. The reversal of 820512426460 is 64624215028.

820512426460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36091617 + ... + 36114343.

It is an arithmetic number, because the mean of its divisors is an integer number (36230534340).

Almost surely, 2^820512426460 is an apocalyptic number.

It is an amenable number.

820512426460 is an abundant number, since it is smaller than the sum of its proper divisors (918553221860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820512426460 is a wasteful number, since it uses less digits than its factorization.

820512426460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39406 (or 39404 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 820512426460 in words is "eight hundred twenty billion, five hundred twelve million, four hundred twenty-six thousand, four hundred sixty".